Showing posts with label ASF. Show all posts
Showing posts with label ASF. Show all posts

Thursday, August 13, 2020

Covid-19 and African swine fever(ASF)..

There are some striking similarities between the Covid-19 outbreak and African Swine Fever.

 A different virus has taken over the headlines now ,sharing the spotlight with African Swine Fever dominating the columns online and in the paper, the Corona virus disease 2019 (Covid-19).

 The Corona virus does not affect swine but indirectly affects the swine business. There is one major difference between ASF and Covid-19, this is the fact that ASF leads to the death of virtually all pigs whereas Covid-19 would in most cases not be lethal, meaning that proper health care can play a role as well.

   Learn all you need to  know about ASF from  experts. Join us.
                                     












Lessons learnt with regard to Covid-19 and ASF, lessons learnt are threefold.

First, it’s never too early to start thinking about a virus at the other side of the planet (look at this Danish example).

Secondly, let’s hope the millions pumped into the vaccine business to find a good Covid-19 vaccine somehow lead to a positive spin-off for pig vaccine development too.

 Thirdly, countries reporting many outbreaks are not the ones having the largest problem – they in fact are the ones sharing the most information.

 The striking similarities between Covid-19 and ASF. 1) The sudden panic . 2) The absence of a vaccine now. 3) Reporting of outbreaks.


  Reporting the outbreaks is very important as there is a link between countries reporting and number of cases in such  countries.

There are many websites around the world keeping us posted about the progress of the Covid-19 virus, about the number of people infected, the number of people that died of the virus and mortality percentages, showing interesting maps.

Interestingly, however concrete those numbers appear to be, it’s good to ask questions about the ‘why’ and ‘how’ behind those figures and that there is a parallel with African Swine Fever outbreaks which Pig Progress has been following intensively.


 For example – can people be infected with Covid-19 yet barely notice it? If so, that would mean that the virus could be much more widespread than is actually reported, meaning that the real mortality figure is much lower.

 Extremely interesting in this context I find is the way in which authorities have behaved in recent years with the reporting of ASF outbreaks.

 It is important to understand that accurately reporting ASF outbreaks depends on a gigantic mix of components, just to name a few: 1)Availability of test kits.

 2)Presence of necessary diagnostics infrastructure, including labs.

3)Availability of funding for affected farmers.

 4)Availability of educated manpower to process all information.

 5)Knowledge about the virus.

 6)Sense of responsibility for others.

 7)Cultural attitudes with regard to transparency in case of large problems.

 8)Corruption.

 9)Protection of export interests.

 As regard to ASF, some countries have reported more outbreaks than others, in different frequencies, in different intensity, on different levels as well. Some did not report anything at all – or only occasional outbreaks.

Using the history of reporting , to have a reliable idea as to what numbers might be credible beyond doubt with regard to reporting corona virus, I’d first look at the countries that have been reporting ASF frequently, swiftly and without hesitation.
     Adopted from pig progress.

Friday, July 31, 2020

Mitigating viruses in pig feed ingredients.

Mitigating viruses in pig feed ingredients. Veterinary researchers in the US and Canada have become particularly interested in the role feed has to play in transmission of viruses.

 A team of leading experts dived into the question of how viruses might be shipped around the planet. It was in 2014 that the North American veterinary community – as well as the worldwide feed and pork industries – started to realise that viruses were being transmitted in feed. Porcine Epidemic Diarrhoea (PED) broke out in the United States in 2013 and, by January 2014, the disease had arrived in Canada.


 “We figured out quite quickly at that point that the outbreak here in Canada was linked to a certain feed ingredient, from the same feed mill, and soon thereafter a research paper was published by scientists at the National Centre for Foreign Animal Disease in Winnipeg Manitoba that showed the link was possible”, explains Dr Egan Brockhoff, veterinarian at Prairie Swine Health Services in Red Deer, AB, Canada and veterinary counsellor for the Canadian Pork Council. “

 African Swine Fever (ASF) came along and since then in the US, Dr Scott Dee, Dr Megan Niederwerder and Dr Cassandra Jones and others have done a lot of work to look into how viruses can tag along in feed ingredients being shipped all over the world.”

 Among the many other studies, Dr Dee (of Pipestone Applied Research at Pipestone Veterinary Services, MN, United States) and colleagues had published an evaluation in 2018 of the survival of livestock viruses in animal feed ingredients that were, and still are, imported daily into the US.

 The study involved simulated transboundary shipping conditions and 11 diseases of global significance: Foot-and-Mouth Disease, Classical Swine Fever, ASF, influenza A, pseudorabies (Aujeszky’s Disease), Nipah disease, Porcine Reproductive and Respiratory Syndrome (PRRS), Swine Vesicular Disease, Vesicular Stomatitis, Porcine Circovirus 2 and Vesicular Exanthema of Swine.


 For six viruses, it was possible to use surrogates with similar genetic and physical properties, but for the others actual viruses had to be used “We found that more viruses survived in conventional soybean meal, lysine hydrochloride, choline chloride, vitamin D and pork sausage casings,” says Dr Dee. “These results also supported data already published on the risk of transporting PEDv in feed.”

Read research here.

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